Good one. Depends if Thanos has the infinity gauntlet Thanos, if he doesn't then Doimsday.

50Bucky Barnes vs Robin

51Amazo vs Sentinel

So evenly matched! OP!

52Ra's Al Ghul vs Wolverine

53Storm vs Wonder Woman

54Daredevil vs Nightwing

55Thor vs Shazam

Shazam would always win

56Swamp-Thing vs Man-Thing

57Catwoman vs Black Cat

58Superman vs Deadpool

This is a fight between arguably the two strongest superheroes of their respective companies. Deadpool is definitely the strongest of Marvel, and Superman is probably the strongest in DC. I have to say Deadpool wins though because Superman will "kill" him over and over again and since he can't die he'll just keep fighting until he finds some kryptonite. Also Deadpool has knowledge that he is a fictional character and he can just go and read a Superman comic and find his weakness.

59Wasp vs. Yellow jacket

I don't know they are pretty much the same but I would say Yellowjacket would win because he would shoot wasp into the multi verse